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Benny Hidayat
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PERTANIAN TROPIK
Published by Universitas Sumatera Utara
ISSN : 26557576     EISSN : 23564725     DOI : https://doi.org/10.32734/jpt.
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Tropical Agriculture Journal (JPT) is a peer-reviewed online journal of Agriculture Postgraduate Study Program Universitas Sumatera Utara (USU). Journal is a result of research, or scientific reviews of researchers, students and agricultural institutions, and others related to agricultural studies in the tropical region. Published in Indonesian and English language with 3 volumes/year (April, August, December). These articles are indexed by Google Scholar, PKP Indexing, RootIndexing, Portal Garuda, Indonesian Publication Index (Garuda Portal), One Search Perpustakaan Nasional, BASE (Bielefeld Academic Search Engine), and Directory of Research Journal Indexing (DRJI), JPT is member of AJPI (Association of Indonesian Agriculture Journal, and strives to be a means of periodic, accredited, national scientific publications or reputable international publications through.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 378 Documents
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Effectiveness of gliocladium virens in controlling Fusarium oxysporum F. sp. capsici disease on chilli plant Astri Afriani; Maria Heviyanti; Fitra syawal Harahap
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (393.421 KB) | DOI: 10.32734/jpt.v6i3.3187

Abstract

Wilt disease which is caused by Fusarium oxysporum f. sp. capsici is one of the importantdiseases in chili plants that can reduce growth, fruits yield, quality, and chili production. Thisfungus comes inside the vascular bundle through the root tissue and quickly colonizes in xylemvessels and causing typical wilt symptoms on plants. In line with the development of organicfarming systems, biological control by using biological agents is the prospective method incontrolling diseases on the plant. Gliocladium virens are one of the biological agents that obstruct thespreading of disease. The aim of this study was to determine the effectiveness of Gliocladiumvirens in controlling Fusarium oxysporum f. Sp. Capsici on chili plant. This research usedrandomized block design with two factors: 1 The Time application of Gliocladium virens (W)factor; 2. Dosages of Gliocladium virens (D). The results show that on the treatment time ofapplication of Gliocladium virens W1 of 0.06, W2 of 0.05, W3 of 0.09 and W4 of 0.08 were notsignificantly different. The treatment given Gliocladium virens disease intensity at week 3 waslower that is equal to 0.125% compared to without treatment of G. virens (D0) the intensity ofthe disease at week 3 was higher at 1%.
Effect of Plant Media Composition and POC Doses of Rabbit Urine on Growth and Yield of Melon (Cucumis melo L.) Plants Gita Ayu Lestari; Sumarsono; Eny uskhah Fuskhah
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.857 KB) | DOI: 10.32734/jpt.v6i3.3188

Abstract

Melon has a high economic value but in its cultivation, this plant requires quite an intensive handling.One effort to increase the production of melon plants is modifying planting media composition andfertilizing. This research aimed to examine the interaction between plant media composition and therabbit urine fertilizer dosage on melon growth and yield. The research was held on April 4 to August4, 2019, at The Agro Fruit Purwosari Greenhouse, Mijen, Semarang and Ecology, and CropProduction Laboratory, Faculty of Animal and Agricultural Sciences, Diponegoro University,Semarang. The study used a completely randomized factorial design 3x5 with 5 replications. The firstfactor was the growing media composition of 100% husk charcoal (M1), 75% husk charcoal + 25%soil (M2), 50% husk charcoal + 50% soil (M3). The second factor was rabbit urine fertilizer dosageof 55 ml/plant (P1), 82,5 ml/plant (P2), 110 ml/plant (P3), 137,5 ml/plant (P4), 165 ml/plant (P5).Data were analyzed by variance and proceeded with the DMRT test. The observed variables wereplant height, amount of leaves, harvest age, fruit weight, fruit diameter, fruit sweetness level, crown,and root fresh weight, crown and root dry weight. The results of the study showed that the interactionof the growing media composition and rabbit urine fertilizer dosage was significant (P<0.05) on theparameters of plant height, amount of leaves, and fruit sweetness level. The treatment of (M2)obtained the highest result on the parameters of plant height, amount of leaves, and fruit sweetnesslevel but had not been shown on the parameters of harvest age, fruit weight, fruit diameter, crownand root fresh weight, crown, and root dry weight.
Response of giving local microorganism solutions from bamboo shoot to growth and production of red chili plant (Capsicum annum L) jenggo F1 Hilwa Walida; Eko Surahman; Fitra Syawal Harahap; Wiwit Arif Mahardika
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.383 KB) | DOI: 10.32734/jpt.v6i3.3189

Abstract

Efforts to increase the production of chilli plants are still experiencing obstacles. The presence of several pests and diseases makes one of the limiting factors that cause a decrease in the production of red chili. Likewise, the intensification of plants by fertilizing and applying pesticides continuously at high doses causes deterioration or decreased soil fertility, so that the addition of fertilizer and pesticide inputs are no longer able to spur increased crop productivity. The aim of this study was to determine the response of giving Local Microorganism (MOL) Solutions bamboo shoot to the growth and production of red chili (Capsicum annum L) varieties of Jenggo F1. This research was conducted with 4 doses of MOL bamboo shoot treatment and repeated 10 times. Research data was the averages data of each parameter and then analyzed descriptively. The highest average height of plants at M2 treatment (100 ml / sample) at the age of 10 MST was 44.05 cm. The average number of leaves at M2 treatment (100 ml / sample) aged 10 MST as many as 77.8 strands. The fastest flowering age was35.7 days (M2). The largest initial production weight was 28.50 grams (M2). Giving MOL solution of bamboo shoot at a dose of 100 ml / sample gave a good response to all observed parameters such as plant height (cm), number of leaves (strands), age of flowering (days), and initial production weight (g).
In vitro dendrobium orchid (Dendrobium sp.) plantlet growth in different concentration of BAP and NAA Siti Sakina; Syaiful Anwar; Florentina Kusmiyati
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (508.027 KB) | DOI: 10.32734/jpt.v6i3.3192

Abstract

In vitro dendrobium orchid plantlet growth is highly determined by the cytokinin and auxin concentration. The aim of this research was to study the effect of 6-Benzylaminopurine (BAP) and Naphthaeeneacetic Acid (NAA) on growth of Dendrobium orchid plantlet. The research was arranged in completely randomized design (CRD) with two treatments. The first treatment was the concentration of BAP (A1 : 0 ppm, A2 : 1 ppm, A3 : 2 ppm) and the second treatment was the concentration of NAA (B0 : 0 ppm, B1 : 0,25 ppm, B2 : 0,50 ppm) with 4 replications. The observed variables were number of buds, plantlet height, number of leaves, and length of leaves. The data obtained were analyzed by Analysis of Variance and followed by Least Significance Different (LSD). The result showed that treatment of BAP and NAA only significantly affected the number of buds variable. The combination of BAP 1 ppm and NAA 0,25 ppm was the best treatment for increasing number of buds of dendrobium orchid plantlet.
Pertumbuhan dan hasil Kailan (Brassica oleracea var. Alboglabra) pada berbagai dosis pupuk kambing dan frekuensi pemupukan Nitrogen Sahla Laksmita Fathin; Endang Dwi Purbajanti; Eny Fuskhah
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.178 KB) | DOI: 10.32734/jpt.v6i3.3193

Abstract

Pupuk kandang kambing merupakan pupuk organik yang befrungsi sebagai penyedia hara dan memperbaiki sifat fisik tanah, namun pupuk organik mengandung hara nitrogen yang sedikit sehingga perlu pemupukan nitrogen lanjutan. Pupuk urea dapat mencukupi kebutuhan unsur nitrogen kailan. Kekurangan pupuk urea yaitu bersifat mobil sehingga diperlukan frekuensi yang tepat. Penelitian ini bertujuan mengkaji pengaruh berbagai dosis pupuk kandang kambing dan frekuensi pemupukan nitrogen terhadap pertumbuhan dan hasil tanaman kaillan (Brassica oleracea var. Alboglabra). Penelitian ini menggunakan percobaan faktorial 4 x 3 dengan Rancangan Acak Kelompok (RAK) terdiri dari 3 kelompok ulangan. Faktor pertama yaitu dosis pupuk kandang kambing (K) yaitu: K0: 0 ton/ha, K1: 10 ton/ha, K2: 20 ton/ha, K3: 30 ton/ha. Faktor kedua yaitu frekuensi pemupukan nitrogen (N) yaitu: N1: satu kali (2 MST), N2: dua kali (2, 3 MST), N3: tiga kali (2, 3, 4 MST). Hasil penelitian menunujkkan perlakuan dosis pupuk kandang kambing 30 ton/ha memberikan hasil terbaik terhadap produksi tanaman kailan. Frekuensi pemupukan nitrogen tiga dan dua kali memberikan hasil terbaik terhadap tinggi tanaman, jumlah daun, dan bobot basah tajuk. Tidak ada pengaruh baik dosis pupuk kandang kambing dan frekuensi pemupukan nitrogen terhadap kadar ANR. Berdasarkan hasil penelitian disimpulkan bahwa dosis pupuk kandang kambing 30 ton/ha dan frekuensi pemupukan nitrogen sebanyak dua kali, menunjukkan pertumbuhan dan hasil tanaman kailan yang paling efektif.
Seed viability and growth of Salak seedling (Salacca edulis Reinw) due to the different concentration and soaking time of gibberellin (GA3) Sindi Kartikasari; Syaiful Anwar; Florentina Kusmiyati
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.377 KB) | DOI: 10.32734/jpt.v6i3.3194

Abstract

Hard bark seeds are one of the causes of long seed dormancy. The solution of salacca seed dormancy is done by soaking the seeds using gibberellin. The aim of this research to examine the effect of different concentration and soaking time of gibberellin on seed viability and growth of salak seedling. The research was conducted on May – July 2019 in Green House of Food Plant and Horticultural Protection Center, Central Java. The study used a Completely Randomized Design (CRD) 4 x 4 with 3 replications, each replications using 5 seeds. The first factor was concentration of gibberellin (G0: 0 ppm, G1: 20 ppm, G2: 40 ppm, G3: 60 ppm). The second factor was soaking time of gibberellin (S0: 10 minutes, S1: 25 minutes, S2: 40 minutes, S3: 55 minutes). Data were analyzed by variance and proceeded with Duncan Multiple Range Test (DMRT) at level 5% and orthogonal polynomial test. The observed variables were percentage of germination, maximum growth potential, seedling height, number of leaves, and root length. The results showed that the highest of percentage germination, maximum growth potential, and seedling height were observed in the 60 ppm of gibberellin concentration. The highest of percentage germination, maximum growth potential, and seedling height were researched in the soaking time 55 minutes. The highest root length was observed in the treatment of 60 ppm of GA3 and soaking time 55 minutes.
Pengaruh Kombinasi Berbagai Jenis Pupuk Organik yang Didekomposisi dengan Trichoderma Viride Terhadap Intensitas Kerusakan Bonggol Tanaman Pisang Siti Hardianti Wahyuni; Dini Puspita Yanti Nst
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.276 KB) | DOI: 10.32734/jpt.v6i3.3197

Abstract

Pengaruh kombinasi berbagai pupuk organic yang didekomposisi dengan Trichoderma viride terhadap intensitas kerusakan bonggol tanaman pisang. Penelitian ini bertujuan untuk mengetahui kombinasi jenis bahan organik dalam menekan intensitas kerusakan bonggol tanaman pisang terhadap Fusarium oxysporum Schl. f. sp. cubense (Foc). Penelitian ini dilaksanakan di lahan Fakultas Pertanian, Universitas Graha Nusantara Padangsidimpuan, mulai Februari sampai bulan Agustus 2019. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas 5 perlakuan dan 4 ulangan. Perlakuan adalah kombinasi berbagai bahan organik sebagai berikut : (a) Kotoran ayam dan jerami didekomposisi oleh T. viride, (b) Kotoran sapi dan jerami didekomposisi oleh T. viride, (c) Kotoran ayam dan kotoran sapi didekomposisi oleh T. viride, (d) Kotoran sapi, kotoran ayam dan jerami didekomposisi oleh T. viride, (e) Kontrol. Hasil penelitian menunjukkan intensitas kerusakan bonggol terendah yaitu pada perlakuan SAJ (menggunakan bahan organic kotoran sapi, kotoran ayam dan jerami) sebesar 0,42 %.
Identifikasi kromosom hasil cangkok anakan salak Sidempuan (Salacca sumatrana Becc.) di Kecamatan Angkola Barat Meiliana Friska
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (201.198 KB) | DOI: 10.32734/jpt.v6i3.3211

Abstract

Salak Sidimpuan (Salacca sumatrana Becc.) is one of the superior commodities in SouthTapanuli Regency. The availability of good quality zalacca varieties, high productivity,resistance to pests and diseases and tolerance to environmental stress are conditions that mustbe met in the era of agricultural industrialization. For this reason, it is necessary to assemblenew superior salacca cultivars to meet the evolving demands of consumers and to anticipatepotential cultivation constraints. Zalacca chromosome analysis is expected to be able toproduce information about the chromosome composition of these plants, which can then beuseful in supporting zalacca breeding. The aim of this study was to obtain the identity of theSalacca Sumatrana Becc. The plant-based on the morphological characteristics ofchromosomes (number, shape, and karyotype of chromosomes). This research was conductedat the Laboratory of Genetics, Faculty of Biology, University of North Sumatra, Medan inApril-May 2019. The results of this study indicate that Salak Sidempuan (Salacca sumatranaBecc.) have the number of chromosomes is 2n = 28, the shape of the chromosome and thekaryotype formula was 2n = 9m + 5 sm (9 metacentric chromosomes and 5 submetacentricchromosomes)
Identifikasi Karakter Fenotip Daun Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan Parmanoan Harahap; Mahyuni Khairiyah Harahap; Fitra Syawal Harahap
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.703 KB) | DOI: 10.32734/jpt.v6i3.3212

Abstract

Identification Phenotypic Character of the Leaves Palm Plant in South Tapanuli Regency This studyaims to determine the effect of the phenotype character of palm leaf leaves on the production of roomiein wild populations of natural habitats in South Tapanuli Regency. The study was conducted in fivevillages in each oft he four sub-districts in the South Tapanuli district. Two hundred sugar palm plantsoriginating from four natural habitats have been identified in accordance with plant identificationprocedures issued by the IPGRI (International Plant Genetic Resources Institute, 1995) and analyzed.The results show that 4 clusters were formed with 75% similarity or 25% diversity. These results canbe concluded that cluster 1 is the population of palm plants that have the long character of petioleand the highest number of unproductive leaves. Whereas the characters of leaf length and rachis lengthare still lower than the population of sugar palm plants in cluster 4. Cluster 2 is the population of sugarpalm plants that has the highest character of sap production per day. Cluster 3 is a population ofpalm plants that have the highest leaf width character. Cluster 4 is a population of palm plants thathave the highest leaf length and rachis length with the highest number of leaflets and the largest rachiscircumference and petiole circumference. The number of productive leaves and the percentage of sapsugar content above average.
Effect of immersion duration of trichoderma harzianum on local chili growth Dini Puspita Yanty; Siti Hardianti Wahyuni
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.595 KB) | DOI: 10.32734/jpt.v6i3.3215

Abstract

Effect of immersion duration of trichoderma harzianum on local chili growth the aim of this researchis to see the old soaking ability of Trichoderma harzianum mushroom on the growth of local chili.The design used was a Completely Randomized Design (CRD) consisting of 6 treatments and 4replications, namely local chili seeds soaked with a 5-minute T.harzianum suspension, local chiliseeds soaked with a 10-minute T.harzianum suspension, local chili seeds that were soaked marinatedwith T.harzianum suspension for 15 minutes, local chili seeds soaked with T.harzianum suspensionfor 20 minutes, local chili seeds soaked with T.harzianum suspension for 25 minutes, Control (withoutimmersion with trichoderma harzianum suspension. Observed parameters are the percentage of local chiligrowth, plant height and number of leaves The results showed that the application of trichoderma harzianumhad a good effect on the growth of chili plants, soaking for 25 minutes was the best soaking on localchili seeds.

Page 22 of 38 | Total Record : 378

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